<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div class="login_box">
        <img src="../assets/logo_home.png" alt="" />
        <span>詹楚金后台管理系统</span>
      </div>
      <el-button @click="logout" type="info">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse?'64px':'200px'">
        <!-- 折叠按钮 -->
        <div class="toggle-button" @click="collapse">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu
          class="el-menu-vertical-demo"
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409EFF"
          unique-opened
          :collapse="isCollapse"
          :collapse-transition="false"
          router
          :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu
            v-for="(item, index) in menuList"
            :index="index + ''"
            :key="item.id"
          >
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{ item.authName }}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item
              v-for="subItem in item.children"
              :key="subItem.id"
              :index="subItem.path"
              @click="saveNavState(subItem.path)"
            >
              <!-- 二级菜单的模板区域 -->
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-menu"></i>
                <!-- 文本 -->
                <span>{{ subItem.authName }}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  components: {},
  props: {},
  data() {
    return {
      // 左侧菜单数据
      menuList: [],
      iconsObj: {
        "125": "iconfont icon-user",
        "103": "iconfont icon-tijikongjian",
        "101": "iconfont icon-shangpin",
        "102": "iconfont icon-danju",
        "145": "iconfont icon-baobiao",
      },
      // 是否折叠
      isCollapse:false,
      // 激活的链接
      activePath:''
    };
  },
  watch: {},
  computed: {},
  methods: {
    logout() {
      window.sessionStorage.clear();
      this.$router.push("/login");
    },
    // 获取所有菜单
    async getMenuList() {
      const { data: res } = await this.$http.get("/menus");
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg);
      this.menuList = res.data;
    },
    // 折叠
    collapse(){
      this.isCollapse = !this.isCollapse
    },
    // 被激活的链接地址
    saveNavState(avtivePath){
      window.sessionStorage.setItem('avtivePath',avtivePath)
      this.activePath = avtivePath
    }
  },
  created() {
    this.getMenuList();
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  mounted() {},
};
</script>

<style scoped lang="less">
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  .login_box {
    display: flex;
    align-items: center;
    font-size: 20px;
    color: #fff;
    img {
      width: 50px;
      height: 50px;
      margin-right: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.home-container {
  height: 100%;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}

</style>
